Fix bt2020 linear ext mapping issue in EGL and Vulkan.

 - EGL_EXT_BT2020_LINEAR should be mapped to extend bt2020 linear if
   output format is FP16.

Bug: 261485283
Test: builds
Change-Id: Ifd68cc10afc0b5b38b15af2a938d02bb3bcd3764
Merged-In: Ifd68cc10afc0b5b38b15af2a938d02bb3bcd3764
(cherry picked from commit aa238976f9378543e8512e0e6e87e38e65c2103c)
2 files changed